27 September 2012, 06:14 PM ET
NASA's Mars rover Curiosity has discovered dried-up signs of an ancient stream on the Martian surface.
27 September 2012, 04:10 PM ET
Once upon a long time ago, streams of water flowed across the landscape of Gale Crater. NASA Senior Planetary Scientist Rebecca Williams explains how sediments were moved and deposited, forming a rock outcrop seen by Curiosity today.
27 September 2012, 03:21 PM ET
Just as suspected, Gale Crater – landing site of the Mars Science Lab – was the site of fast-flowing water in the planet's distant past. Curisoity's cameras are examining a rock outcrop that is a sure sign of stream-bed.
27 September 2012, 02:22 PM ET
NASA's Curiosity rover has found proof that water once flowed on the surface at its Gale Crater landing site.
27 September 2012, 11:19 AM ET
The Mars rover Curiosity news conference webcast begins at 2 p.m. EDT (1800 GMT)
27 September 2012, 11:15 AM ET
Curiosity took a break from Martian rocks to observe Mars biggest moon in the sky.
26 September 2012, 07:00 AM ET
Vote for the weirdest thing Curiosity toted to Mars.
25 September 2012, 02:49 PM ET
NASA's next step for Mars exploration should aim to return pieces of the Red Planet to Earth, scientists say.
24 September 2012, 06:41 PM ET
The $2.5 billion robot has performed its first contact science operations.
21 September 2012, 02:07 PM ET
The Mars Science Lab team's Adam Steltzner (architect of the 7 minutes of terror landing) shares his thoughts with NASA on why it is so important for humanity to reach beyond planet Earth.
19 September 2012, 04:30 PM ET
Curiosity's pictures will help scientists nail down the orbital evolution of Mars' two tiny moons.
19 September 2012, 03:40 PM ET
The Mars Science Lab rover set it sights upward to witness Phobos transit the disk of the Sun on September 13, 2012. The Mastcam is equipped with special filters for direct Sun observation.
18 September 2012, 05:31 PM ET
The six-wheeled robot is carrying a 1909 Lincoln penny for use as a calibration target.
18 September 2012, 04:50 PM ET
The scientist talks about the Curiosity rover's mission on the Red Planet.
18 September 2012, 04:47 PM ET
Curiosity snapped this "dog's eye view" on Sept. 9, 2012.
17 September 2012, 05:13 PM ET
Curiosity caught the Martian moon Phobos crossing the face of the sun.
17 September 2012, 02:20 PM ET
The space agency will dole out a total of $2.7 million in awards.
17 September 2012, 07:00 AM ET
It's time for human and robotic exploration to work together, officials say.
14 September 2012, 12:49 PM ET
Using the rover's drill (the first brought to Mars) and scoop, mission scientists, like CalTech’s John Grotzinger, may better understand Mars’ water story as written in its minerals. Curiosity will drill for that history as it climbs Mount Sharp.
13 September 2012, 03:59 PM ET
Engineers mounted a 1909 penny is mounted on the rover for calibration purposes. The Curiosity team laboring on Mars time is explained.
12 September 2012, 04:30 PM ET
Curiosity's commissioning phase will be complete in the next day or so.
12 September 2012, 11:28 AM ET
The Mars rover update begins at 2 p.m. EDT (1800 GMT).
11 September 2012, 01:12 PM ET
The photo looks hazy because the dust cover on MAHLI was closed at the time.
10 September 2012, 04:27 PM ET
Glavin works on the Mars rover Curiosity's Sample Analysis at Mars instrument, or SAM.
10 September 2012, 02:28 PM ET
Curiosity is snapping spectacular self portraits on the surface of Mars.
07 September 2012, 03:38 AM ET
The left eye of the Mast Camera (Mastcam) on NASA's Mars rover Curiosity took this image of the camera on the rover's arm, the Mars Hand Lens Imager (MAHLI) in this space wallpaper.
06 September 2012, 03:12 PM ET
New Mars photos show the Curiosity rover's tracks and parachute from space.
06 September 2012, 01:04 PM ET
See amazing photos of Mars from NASA's Curiosity rover from its first month on the Red Planet.
06 September 2012, 12:55 PM ET
After one month on Mars, NASA's Curiosity rover is shifting into Martian science gear.
06 September 2012, 10:14 AM ET
The Mars rover Curiosity is going strong on the Red Planet.
04 September 2012, 11:10 AM ET
MSL Flight Director Bobak "Mohawk Guy" Ferdowsi recaps Curiosity's week of messages from Mars and shows off the morse code of 'JPL' he shaved on the side of his head, just like the code left behind by the Curiosity rover's tire tracks.
31 August 2012, 01:57 PM ET
Part of Curiosity's Martian mission is to determine if methane is still being created on Mars. It might be tectonic activity deep underground, but it's also possible that something living beneath the martian surface could be creating the gas.
30 August 2012, 04:45 PM ET
Tracks from the six-wheeled robot's historic first test drive on Mars.
30 August 2012, 10:00 AM ET
Mission controller-turned-celebrity Bobak Ferdowsi will host a program on internet radio.
30 August 2012, 05:14 AM ET
The president talked space in a surprise Reddit chat Wednesday (Aug. 29).
29 August 2012, 05:32 PM ET
Curiosity will be on the move for a while.